A line service technician works for an airline or airport support company and helps ensure the safety of departing and arriving aircraft. As a line service technician, your job duties include directing planes to and from the gate, checking fuel and water supplies, and handling baggage and trash removal. However, you generally do not perform repairs or check instruments on the plane like certified mechanics. The career typically requires a high school diploma or GED certificate, a valid driver’s license, and previous work experience in an airport. Some employers also offer on-the-job training for entry-level applicants. Additional qualifications include the ability to operate airport equipment, excellent communication and technical skills, as well as attention to detail.